基于先进制造平台的假肢接受腔计算机辅助制造系统(英文)

Computer-aided prosthetic socket manufacturing system based on an advanced manufacture technology

目的:为了克服手工制作假肢接受腔的缺点,将计算机辅助制造技术用于加工假肢接受腔,提高接受腔的质量和加工效率,减少对操作者知识和经验的要求。方法:基于先进制造平台建立假肢接受腔计算机辅助制造系统,进行系统的硬件设计和软件实现。先进制造平台的主要部件包括工控机,运动控制卡,松下全数字交流伺服控制系统,丝杠导轨,铣刀主轴电机,变频器,开关电源,限位开关及接近开关。软件主要包括参数设置、测试机器及开始加工 3 个功能模块。通过设置不同的指令脉冲输入和驱动器参数,调试出不同的电机转速。结果:实验结果显示,电机不仅有着自我保护的最高转速限制,而且即使在极低速运转的情况下,电机的运转现象仍然非常平稳,不会出现振动现象,更符合假肢接受腔的加工特点,可以加工出满足残疾人需要的高质量假肢接受腔。结论:基于先进制造平台的假肢接受腔计算机辅助制造系统可以克服手工制作的缺点,确保产品质量,降低成本。可以把优秀假肢制作师长期积累的经验编入计算机设计程序,减少对操作者知识和经验的要求,提高假肢接受腔一次制作成功率,降低接受腔的质量不确定性,从根本上改变了过去依靠手工设计、测量、取型、修型等落后的生产模式。

OBJECTIVE： To overcome the shortcoming of manual method, computer-aided manufacturing （CAM） system of prosthetic socket is applied to improve socket＇s quality and processing efficiency, which also reduces the demand of operator＇s knowledge and experience. METHODS： Prosthetic socket CAM system was discussed based on an advanced manufacture technology, and the hardware and software were designed. The advanced manufacture platform was composed of an industrial personal computer （IPC）, a motion control card, four sets of Panasonic digital AC servo control system, four lead screw guides, two spindle motor of milling cutter, a transducer, two switching power supply, limit switch and proximity switch. The software of prosthetic socket CAM system mainly included three function modules： parameter setting, machine testing and beginning processing. Through adjusting command pulse＇s input and driver＇s coefficient, the motor worked at different speeds. RESULTS： The result of experiment demonstrated that maximum rotational speed restriction was applied to protect the motor, and the motor could work very smoothly without vibration in very low speed. It was suitable for manufacture prosthetic sockets, and could manufacture the high quality prosthetic socket to satisfy the requirements of amputee. CONCLUSION： Prosthetic socket CAM system based on the advanced manufacture platform can overcome the shortcoming of traditional manual method, ensure product quality, and reduce the cost. The protracted experience of certified prosthetist was incorporated into the design program to reduce the demand of manipulator＇s knowledge and experience, increase the one-time success rate of manufacture prosthetic sockets, and improve the quality uncertainty of sockets. It can change the backward production mode of designing, measuring, taking model, and modifying model which depends on handwork.